[  659.959383][    C1] tun0: no available key for peer 1, key-id: 0
[  660.208883][ T7606] tun0: no available key for peer 4, key-id: 0
[  660.209190][ T7606] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:2/7606
[  660.209456][ T7606] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  660.209850][ T7606] CPU: 0 UID: 0 PID: 7606 Comm: kworker/u16:2 Not tainted 7.0.0-virtme #10 PREEMPT(full) 
[  660.209854][ T7606] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  660.209856][ T7606] Workqueue: kstrp strp_work
[  660.209864][ T7606] Call Trace:
[  660.209866][ T7606]  <TASK>
[  660.209868][ T7606]  dump_stack_lvl+0x6f/0xa0
[  660.209875][ T7606]  check_preemption_disabled+0xdb/0xf0
[  660.209879][ T7606]  ovpn_recv+0x193/0x2b0 [ovpn]
[  660.209884][ T7606]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  660.209889][ T7606]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  660.209893][ T7606]  ? __copy_skb_header+0xb7/0x510
[  660.209897][ T7606]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  660.209900][ T7606]  ? __skb_send_sock+0x900/0xa70
[  660.209904][ T7606]  __strp_recv+0x20f/0x1c30
[  660.209909][ T7606]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  660.209914][ T7606]  __tcp_read_sock+0x1c7/0x850
[  660.209918][ T7606]  ? strp_process+0xb0/0xb0
[  660.209921][ T7606]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  660.209926][ T7606]  strp_read_sock+0x20f/0x2b0
[  660.209929][ T7606]  ? strp_stop+0x50/0x50
[  660.209930][ T7606]  ? __lock_release.isra.0+0x6b/0x1a0
[  660.209936][ T7606]  ? lockdep_hardirqs_on+0x8c/0x130
[  660.209937][ T7606]  ? __local_bh_enable_ip+0xa5/0x140
[  660.209942][ T7606]  strp_work+0x9f/0xe0
[  660.209943][ T7606]  process_one_work+0xdf5/0x1410
[  660.209950][ T7606]  ? pwq_dec_nr_in_flight+0x710/0x710
[  660.209952][ T7606]  ? lock_acquire.part.0+0xbc/0x260
[  660.209959][ T7606]  worker_thread+0x4f1/0xd60
[  660.209962][ T7606]  ? rescuer_thread+0x1320/0x1320
[  660.209964][ T7606]  ? __kthread_parkme+0xbd/0x210
[  660.209968][ T7606]  ? rescuer_thread+0x1320/0x1320
[  660.209970][ T7606]  kthread+0x364/0x460
[  660.209971][ T7606]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  660.209974][ T7606]  ? kthread_affine_node+0x330/0x330
[  660.209976][ T7606]  ret_from_fork+0x474/0x6b0
[  660.209981][ T7606]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  660.209984][ T7606]  ? __switch_to+0x5a3/0xe00
[  660.209987][ T7606]  ? kthread_affine_node+0x330/0x330
[  660.209989][ T7606]  ret_from_fork_asm+0x11/0x20
[  660.209997][ T7606]  </TASK>
[  676.591208][ T8571] tun0: deleting peer with id 6, reason 4
[  676.591303][ T8546] tun1: deleting peer with id 1, reason 4
[  676.591487][ T8551] tun2: deleting peer with id 2, reason 4
[  676.592808][ T8556] tun3: deleting peer with id 3, reason 4
[  676.593147][ T8561] tun4: deleting peer with id 4, reason 4
[  676.594863][ T8566] tun5: deleting peer with id 5, reason 4
[  676.595513][ T8572] tun6: deleting peer with id 6, reason 4
[  676.601735][ T8571] tun0: deleting peer with id 5, reason 4
[  676.609396][ T8571] tun0: deleting peer with id 4, reason 4
[  676.615244][ T8571] tun0: deleting peer with id 3, reason 4
[  676.619204][ T8571] tun0: deleting peer with id 2, reason 4
[  676.627095][ T8571] tun0: deleting peer with id 1, reason 4